Used at the end of a sentence, as if to confirm something that you already know. Often used in a playfully disrespectful way. Can also be used in a similar way to adding 'not' to the end of a sentence.
Example1:

A: (says insult)
B: (overeacts)
A: Wow, over reaction much (?)
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Example2:

A: What's 1+1?
B: Haha, Genius much (?)
by BabeyGurl November 21, 2009
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-“Not much”-
A sequence of words consisting of “Not” and “much” WARNING when combined they form a lethal injection to any conversation and stops it dead in its tracks leaving no survivors!
Will:”hey wyd
Mackey:”Not much”
Will:
Mackey:
Will:*jumps out of balcony*
by ToasterStrudelWithIcing August 14, 2019
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Used on the end of adjectives to make retarded sentences.

If you want to sound like you're a conformist then go ahead. OR you could sound like you're from a modern age with advanced people (yes even the prostitutes) then, you probably should just leave it alone.
gangster much.
by Jackson Samuel June 09, 2009
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1. Just a word used after using another word to make it heaps cooler

2. Used at the end of a sentence to piss people off.

3. The best word in the English dictionary
1. Jealous much?

2. Wana come and get drunk with me much?

3. gay much?
by WillTurnerMan December 06, 2009
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The most natural, common response to "whatchu wearin'?" Used due to the question's pragmatic similarity to "what's up?"
Mitcho: Hey, Noah, whatchu wearin'?
Noah: Not much.
Mitcho: Really?
Noah: Yes, really.
by Mitcho December 24, 2003
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